Difference between revisions of "Spider"
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'''Spider''' is an orthogonal [[c/5 orthogonal|c/5]] [[spaceship]] that was discovered by [[:Category:Patterns found by David Bell|David Bell]] in April [[:Category:Patterns found in 1997|1997]]. It is the smallest known c/5 orthogonal spaceship. Its side [[spark]]s have proven to be very useful in constructing [[puffer]]s and [[rake]]s. | '''Spider''' is an orthogonal [[c/5 orthogonal|c/5]] [[spaceship]] that was discovered by [[:Category:Patterns found by David Bell|David Bell]] in April [[:Category:Patterns found in 1997|1997]]. It is the smallest known c/5 orthogonal spaceship. Its side [[spark]]s have proven to be very useful in constructing [[puffer]]s and [[rake]]s. | ||
On March 7, {{year|2019}}, [[Martin Grant]] found a 601-glider [[glider synthesis|synthesis]] of spider, making it the first c/5 orthogonal spaceship to be synthesized.<ref name="post72705" /> | On March 7, {{year|2019}}, [[Martin Grant]] found a 601-glider [[glider synthesis|synthesis]] of spider, making it the first c/5 orthogonal spaceship to be synthesized.<ref name="post72705" /> Optimizations have since been found to reduce the glider count.<ref name="post72705" /> | ||
==See also== | ==See also== | ||
Revision as of 14:20, 14 March 2019
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| Pattern type | Spaceship | ||||||||||
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| Number of cells | 58 | ||||||||||
| Bounding box | 27 × 8 | ||||||||||
| Direction | Orthogonal | ||||||||||
| Period | 5 | ||||||||||
| Mod | 5 | ||||||||||
| Speed | c/5 | c/5 | ||||||||||
| Heat | 53.6 | ||||||||||
| Discovered by | David Bell | ||||||||||
| Year of discovery | 1997 | ||||||||||
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Spider is an orthogonal c/5 spaceship that was discovered by David Bell in April 1997. It is the smallest known c/5 orthogonal spaceship. Its side sparks have proven to be very useful in constructing puffers and rakes.
On March 7, 2019, Martin Grant found a 601-glider synthesis of spider, making it the first c/5 orthogonal spaceship to be synthesized.[1] Optimizations have since been found to reduce the glider count.[1]
See also
References
- ↑ 1.0 1.1 Martin Grant (March 7, 2019). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
External links
- Spider at the Life Lexicon
- The Spider (glider 18216) at David Eppstein's Glider Database
- 58P5H1V0.1 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Spaceships with 58 cells
- Periodic objects with minimum population 58
- Patterns with 58 cells
- Patterns found by David Bell
- Patterns found in 1997
- Patterns that can be constructed with between 500 and 599 gliders
- Spaceships
- Spaceships with period 5
- Orthogonal spaceships
- Spaceships with speed c/5
- Spaceships with unsimplified speed c/5
- Spaceships with heat 53
- Spaceships with mod 5
- Patterns with bilateral orthogonal symmetry